Question: Active transport (pick only one). goes from high concentration to low concentration water moves to...

Question: Active transport (pick only one).

goes from high concentration to low concentration

water moves to the higher ion concentration

is facilitated by transport proteins

uses ATP to go from low concentration to high concentration

Expert Solution

Answer-

Active transport occurs against the concentration gradient and is mediated by carrier proteins. Metabolic energy is used to move ions or molecules against the concentration gradient.

Example- Na+-K+ ATPase pump

Transport of Na+ and K+ by carrier protein, Na+-K+ ATPase, is the most common example of primary active transport. Virtually every animal cell maintains lower Na+ concentration and high K+ concentration than they are found in its surrounding. This imbalance is established and maintained by an active transport system in the plasma membrane, involves the Carrier protein Na+ -K+ ATPase coupled with breakdown of ATP.

For each molecule of ATP hydrolyzed, 2 K+ move inward and 3 Na+ ions move outward.

gladiator answered 1 year ago

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